Cu-Catalyzed tandem <i>N</i>-arylation of phthalhydrazides with cyclic iodoniums to yield dihydrobenzo[<i>c</i>]cinnolines
作者:Rongrong Xie、Hongxu Lv、Xiuqing Ye、Xiangfei Kong、Shiqing Li
DOI:10.1039/d0ob00894j
日期:——
pharmacological properties. Herein, we investigate a Cu-catalyzed tandem N-arylation reaction of phthalhydrazides with cyclic iodonium salts to construct dihydrobenzo[c]cinnoline derivatives. Various iodonium salts, such as symmetrical, unsymmetrical, aryl–aryl, and aryl–heteroaryl ones, could react with phthalhydrazides smoothly and give the title products in moderate to high yields. Moreover, the –NH2 group
二氢辛啉具有明显的药理特性。本文中,我们研究了邻苯二甲酰肼与环碘鎓盐的Cu催化串联N-芳基化反应,以构建二氢苯并[ c ]肉桂酸衍生物。各种碘鎓盐,例如对称,不对称,芳基-芳基和芳基-杂芳基盐,都可以与邻苯二甲酰肼平稳反应,并以中等至高收率得到标题产物。此外,在以前的报道中,–NH 2基团已经被环状碘鎓盐二芳基化以形成咔唑,在这项工作中也被很好地耐受。